you can't get an XLCell object, but you can use the Excel COM api and get a Range object that has a Value property.

Use pyxll.get_active_object to get the Excel application object (see automation.py example, xl_app function). The you can do something like app.ActiveSheet.Range("A1") to get the range you want. If you want to get the sheet the function is called with you can use pyxll.xlfCaller.